Details: Since we now set LD_LIBRARY_PATH. Missing part is
that we need to ship Qt3Support with creator.

Task:     243962

Details:  Patch by Antoine Requet

Details:  Patch by Antoine Requet

Fixes: Add a combo for diff file browsing, bring diff editors to front, exclude qconfig.pri from files examined by p4.

Task: 234842

Details:  That fixes a few bugs, while still having a few missing
things. Don't allow the user to set a shadow build directory, if there
is already a in source build. Detect if a cbp file is already existing
and recent enough, don't rerun cmake then. Ensure that the user runs
cmake with the cbp generator on opening the project. Show the output of
the cmake generator while running. Remove the unecessary cmake step.

Details:
"CONFIG = foo bar" resulted in "CONFIG = bar"
"CONFIG = foo
CONFIG = bar $$CONFIG"
resulted in "CONFIG = bar bar"

RevBy:    - hjk

generated files are listed properly (with 2 scroll bars).
Revby:   dt
Details: Merely an aesthetic fix.

RevBy: hjk

Details:  was a needless layer

Details:  accounted for >60% startup time in some cases and was
presumably only needed as help for a fallback when setting breakpoints
with gdb 6.5 on Windows

Task:     180315
RevBy:
Details:

This makes restoring sessions faster, but switching to restored documents for the first time
a bit slower.

Details:  LD_LIBRARY_PATH setting still missing

Use _HPP for example for .hpp files, for example. Based on simply
putting the chosen extension in uppercase.

This code is already in TextEditor::BaseTextEditor::openEditorAt.